//xx for zdwx.com
function showNB(num) 
{for(var id = 0;id<=2;id++) 
{var fpid="focusNB"+id; 
if(id==num){ 
try{document.getElementById(fpid).style.display="block"}catch(e){}; 
}else{ 
try{document.getElementById(fpid).style.display="none"}catch(e){};}}}

function show2NB(num) 
{for(var id = 0;id<=2;id++) 
{var fpid="focus2NB"+id; 
if(id==num){ 
try{document.getElementById(fpid).style.display="block"}catch(e){}; 
}else{ 
try{document.getElementById(fpid).style.display="none"}catch(e){};}}}

function show3NB(num) 
{for(var id = 0;id<=3;id++) 
{var fpid="focus3NB"+id; 
if(id==num){ 
try{document.getElementById(fpid).style.display="block"}catch(e){}; 
}else{ 
try{document.getElementById(fpid).style.display="none"}catch(e){};}}}

function show4NB(num) 
{for(var id = 0;id<=3;id++) 
{var fpid="focus4NB"+id; 
if(id==num){ 
try{document.getElementById(fpid).style.display="block"}catch(e){}; 
}else{ 
try{document.getElementById(fpid).style.display="none"}catch(e){};}}}

function show5NB(num) 
{for(var id = 0;id<=3;id++) 
{var fpid="focus5NB"+id; 
if(id==num){ 
try{document.getElementById(fpid).style.display="block"}catch(e){}; 
}else{ 
try{document.getElementById(fpid).style.display="none"}catch(e){};}}}